| | | | 
x^2 | + | 2 x | + | 8 | | | | x^2 | - | x | + | 1 
x^4 | + | x^3 | + | 7 x^2 | - | 6 x | + | 8 
x^4 | + | 2 x^3 | + | 8 x^2 | | | | 
 | | -x^3 | - | x^2 | - | 6 x | | 
 | | -x^3 | - | 2 x^2 | - | 8 x | | 
 | | | | x^2 | + | 2 x | + | 8 
 | | | | x^2 | + | 2 x | + | 8 
 | | | | | | | | 0